Governance relationships can't co-exist with pre-configured GDAP admin relationship

I operate for an MSSP, we are CSP as well. Below is our setup -

1. We have GDAP setup for our clients to support their 365 services.
2. We have Azure lighthouse to centrally manage their subscriptions.

Microsoft announced last year that Sentinel is going to Defender. Microsoft also cleared that GDAP doesn't work with Sentinel part in Defender. There's a hard deadline for this move.

Now, I saw Microsoft announced Governance relationships that aims to solve MSSP issues. https://learn.microsoft.com/en-us/unified-secops/governance-relationships. I created a relationship but when I tried to accept it told me that there is a conflict and it can't happen because I have a GDAP relationship with the same tenant.

I had to remove GDAP relationship to get this working. Now, the question is if I remove GDAP how would I access rest of the 365 services via governance relationship? None article is helping.
Any help?

Thanks!